#include <stdio.h>
int func(int n)
{
	int sum=0,i;
	for(i=0;i<n;i++){
	 sum+=i;
	}
	return sum;
}

int main(void)
{
 int i;
 long result = 0;
 for(i=1;i<=100;i++){
	result+=i;
	}
 printf("result[1-100]=%ld \n",result);
 printf("result[1-250]=%d \n",func(250));
}
